Local reactivity of metal-insulator-semiconductor photoanodes imaged by photoinduced electrochemiluminescence microscopy.

Julie DescampsYiran ZhaoJulie Le-PouliquenBertrand GoudeauPatrick GarrigueKarine TavernierYoan LégerGabriel Loget Neso Sojic

Published in: Chemical communications (Cambridge, England) (2023)

Localized photoinduced electrochemiluminescence (PECL) is studied on photoanodes composed of Ir microbands deposited on n-Si/SiO x . We demonstrate that PECL microscopy precisely imaged the hole-driven heterogeneous photoelectrochemical reactivity. The method is promising for elucidating the local activity of photoelectrodes that are employed in solar energy conversion.

Keyphrases

sensitive detection
label free
single molecule
high resolution
high speed
electron transfer
room temperature
energy transfer
optical coherence tomography
high throughput
quantum dots
solar cells
mass spectrometry